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United States Patent | 5,503,757 |
Ignatow ,   et al. | April 2, 1996 |
An improved composition of matter and method for neutralizing acid in air conditioning or refrigeration systems is disclosed. An acid neutralizing substance (such as an alkali metal hydrate) is supersaturated into an anhydrous alcohol to form an alkaline solution. The solution is then mixed with a lubricating oil, and the resulting mixture introduced into a refrigerant compressor system on the high pressure side of the compressor. The improved composition and method can also be utilized to prevent the formation of acid in a compressor system. The improved composition is also used to neutralize any acid in refrigerants prior to disposal. The improved composition is also used to neutralize any acid in recycled refrigeration oil prior to reuse of the oil.
Inventors: | Ignatow; James (Houston, TX); Kuca; John L. (Houston, TX) |
Assignee: | The Rectorseal Corporation (Houston, TX) |
Appl. No.: | 324765 |
Filed: | October 17, 1994 |
Current U.S. Class: | 508/178; 252/68; 508/545 |
Intern'l Class: | C10M 125/10; C10M 129/04 |
Field of Search: | 252/25,68,69,71 |
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Industrial Lubrication and Tribology, vol. 43, No. 6, pp. 10-22 (Nov./Dec. 1991). Trane, CFC Update, vol. 5 (Dec. 1990). Sporlan Valve Company, St. Louis, Missouri, Bulletin 240-10-3 (Jun. 1983). "Standard Test Method for Neutralization Number of Color-Indicator Titration," American National Standard British Standard 2634, pp. 460-466, (1965). Copeland Corporation brochure (Sidney, Ohio 1970). ALCO Controls, "Tech Tips from ALCO" (St. Louis, Missouri). The Refrigerant Management Company, Global Recovery Services brochure, "A New Dimension in Refrigerant Management". McCain, "Refrigerant Reclamation Protects HVAC Equipment Investment," Ashrae Journal, pp. 32-36 (Apr. 1991). "A Better Way of System Clean-Up After a Motor Burnout," RCS, pp. 14-22 (Jan. 1991). "Here's How We'll Handle CFCs," McCarty Bros. article. "Du Pont Introduces `Suva` Alternatives; Both 123, 134a Available--at a Price" article (New York). Tecumseh Manual, "System Cleanup After Burnout," pp. 70-72. Petty, "Friendswood Inventor Becoming One of Environment's Best Friends," The Houston Post, p. C-15 (Feb. 24, 1992). "Suction Line Filter-Drier Procedures: A `How to` Approach," Anonymous Author!. Sporlan Valve Company Bulletin 40-10, p. 2 (Mar. 1991). |
TABLE I ______________________________________ PERCENT BY WEIGHT ACCEPT- MOST CONSTITUENT ABLE PREFERRED PREFERRED ______________________________________ potassium 0.1 to 3.3 0.2 to 0.4 0.3 hydroxide, 90% assay anhydrous 0.7 to 20.3 1.3 to 2.5 1.9 isopropyl alcohol highly refined 76.4 to 99.2 97.1 to 98.5 97.8 naphthenic mineral oil ______________________________________
TABLE II ______________________________________ Compressor Initial Neutralizer Final and Size Acid No. Dosage Acid No. ______________________________________ Tecumseh 0.13 4 fl. oz. 0.01 7.5 ton Trane 0.04 8 fl. oz. 0.02 45 ton Unknown 0.09 1 fl. oz. 0.00 0.5 ton Copeland 0.23 8 fl. oz. 0.01 25 ton Copelametic 0.42 12 fl. oz. 0.02 25 ton Copelametic 0.90 32 fl. oz. 0.00 10 ton ______________________________________